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A049213 as a simple table

na(n)
11
26
31
456
512
61
7616
8148
918
101
117392
121904
13276
1424
151
1693632
1725312
184080
19440
2030
211
221230592
23344960
2459808
257360
26640
2736
281
2916612992
304792128
31876960
32118224
3311960
34876
3542
361
37228890112
3867586816
3912900416
401860992
41209200
4218096
431148

[1,6,1,56,12,1,616,148,18,1,7392,1904,276,24,1,
 93632,25312,4080,440,30,1,1230592,344960,59808,
 7360,640,36,1,16612992,4792128,876960,118224,
 11960,876,42,1,228890112,67586816,12900416,
 1860992,209200,18096,1148]